4. Pain in the Lower Back, Side, or Flank
Back pain is common and often comes from muscles, joints, posture, or injury. But kidney-related pain can sometimes be felt in the side, flank, or middle-to-upper back, often under the ribs.
The source article explains that kidney pain may appear in the sides or middle-to-upper back, and pain with fever, urinary symptoms, or pain moving toward the groin may suggest a kidney or urinary cause.
Seek medical attention quickly if you have severe side pain, fever, chills, nausea, vomiting, pain while urinating, or blood in urine. These symptoms may be linked with kidney infection or stones.
5. Swelling in the Ankles, Feet, Legs, Hands, or Face
